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oct. 5 ism, Lowa@ W. E. RAMSEY FLOOR CONSTRUCTION Filed Maoh 2.' 1923 2 Sheets-Shea?. 1

ct. 5 E926.

. LOLQZQ W. E. RAMSEY FLOOR CONSTRUCTION Filed March'2. 1923 2 Sheets-Sheet 2 Patented Unt. 5, 1926..

WILLIAM E. RAMSEY, OF CHICAGO, ILLINOIS.

FLOOR CONSTRUCTION.

Application filed March 2, 1923. Serial No. 522.289.

This invention relates to a floor construction which utilizes a plurality of'pre-cast For its principal Vobjects my inventionV aims to providel a floor construction which mayl be produced with a minimum of expense; rwhich willY be' sufhciently strong to sustain yits intended load;which may be easily vset up and installed by workmen of average'or ordinary skill; which will posmaterials which may be handled, packed andshipped. with the maximum of convenience and safety. I'In these respects, as well as others which will hereinafter appear, my invention is characterized by certain iinprovements most of which are set forth in the specification and claims to follow, and

in the accompanying drawings which illus-` trate certain embodiments of my invention in the manner following:

Figure l is a' view in perspective,- partly brolren away, to show in section a floor construction which utilizes supports in the forni of girders or I-beams of conventional de- Fig. 2 is a sectional view taken in planes each of which parallels the shown in Fig. l;

Fig. 3 'is a sectional detail taken 3 3 of Fig. 2; f

Fig. 4 is a sectional detail shown W4 of Fig, 3;"

lFig.` 5 which is a viewVv similar to Fig. 3 shows the construction modified for use with a girder of lesser vertical dimension; y

Fig. 6 is an enlarged detail showing one forni of tying the floor and web-plates together;

' Fig. 7 is an' enlarged detail in section showing a tying connection between the web and ceiling plates;

Fig. 8 is a similar view wherein a lathing to which a plaster coat may be applied, is substituted for the ceiling plates elsewhere shown; and

Fig. 9 is a detail in section illustrating a floor construction wherein the web plates are girders on line on line various arranged vertically instead of obliquely as in the remaining figures.

lhe present rloor construction is adapted to extend between suitable supports such as girders A and B which may be carried upon columns or pilasters inthe usual manner. These girders are shown in the form of 4conventional I-beams each having a web l0 `randupper and lower flanges ll and l2, 'respectively. The distance that these girders are spaced apart is, ofcourse, determined usually with reference to 'thestrengthof the floor components which are extended between them.V Y

iiccordingl to this invention, use is made y K of a plurality of plates or slabs, each prefersess adequate strength without an .eicess of. l weight; and a-V construction .from pre-cast ably pre-cast from concrete orother suitable `plastic materialhaving the requisite proper- `ties and suitably reinforced with, the aid of rods orbars. In general, these plates are of: rthree kinds, those designated as C` being,

termed the floor plates, those bearing the letters D as ceiling plates, and the intermediate or oblique plates E being referred to as web plates. rFliese several plates may be produced economically in moulds, and to reduce weight withoutsacriiice of strength are shown tovbe provided with recesses 13 in the case of the licor andceiling plates,fand with holes or openings liin the web plates. l,When so vformed they are both convenient and suitable for handling and shipping.

A plurality Aof iiooi' components of the generalkind described are arranged so as to extend transversely between the spaced hori- Zontal supports A'and B. In assembling the plates, a block F of concrete or other appropriate material is preferably arranged adj acent the girder webs l() and suitably rested upon a foundation 1.5 of concrete below which may be positioned a shoe tile Gr of the usual kind. The block F is shown to be formed-with some sort of a shoulder 16 on ltheir upper and lower'sides, respectively,

This ar-' with the'floor and ceiling plates. rangement may be modilied, however, asy suggested in Fig. 9, where the web plates areverticallydisposed in right angular relation to the floor andceiling plates, and in parallelism with eachother. l

The floor components which are related to each' other and to the girdei's in the vgeneral manner described are further arranged to rinterlock so as to form,in effect, a 'uni "tary structure which Vis practically indeypendent ofn'iortar Aorany other cementing 'medium For thispiirpose, the edges of the f several plates are specially Vformed with notches so as to provide intervening lugs or teeth which co-operate with like formations on the adjacent plates. In the case of the' web and ceiling plates, these lugs or teeth so interengage' as :to Vform an interlock. `l/Vith the floorplates an interlock is also 'provided which may or may not connect with the interlock at the'upper edges of the web plates. VAdditionally, however, these "lugs orteethlin theifloor plates are vso arianged'as to Yleave at intervals open spaces of the several ceiling plates are shown to be j' vprovided with alternately formed notches effect, a

[wherein mortar may be I'GCeVed t0 Provide' y `between the notches on the ceiling plates, i

a supplementary tie between them.

Referring now to Figs. 1 and 2 the edges and lugs, and these may take on four dise tinct formations which occur successively throughout the length ofthe several plates er slabs. The cross section of F ig. 2 which vis taken in four successive planes sets forth these several formations whichvinaybe advantageously employed. One of these shows notches Vhaving oppositely disposed obliqueV edges 17 so as Vto provide between them a tl-shaped pocket, wherein may be received the lugs formed on the proximate edges of two web plates. By the numeral 18 I have indicated lugs which occupy substantially abutting relations, their upper faces 4being formed with grooves 19 in which may be received lugs which project from the proximate edges of the web plates. Another formation is suggested where the numeral 2O indicates fthe rear oblique' edge of a notch into 'which is projected a lug 21 from the adjacent ceiling plate, this lug having kupper and lower oblique faces 22 and 23,

respectively. In the last formation the notch has a rea-r face 24 that is obliquely inclined, the notch being in co-operating re1 lation with another notch having an oblique face 25 o lJpositely disposed so as to form,'in

]V-shaped pocket, wherein'may be Vhiere particularly, the web Yplates the grooves 19. so as to i'ind a bearin received the lugs ofV one of the proximateV web Plates.V i f l' Y f VvAssembled with a plurality ofqceiling plates whichinay have theV special construe# tion just described, are the several V'web plates which, according Vto Figs. 1 and`2, are obliquely disposed so as to lie inrright angular or other' definite relation to each other. As shown, theyV are arranged in Zigzag formation between the ceiling and licor plates. These web plates are also notched 1 along their-opposite 'edges so as to' interlock Y with each other as wellas with Vthe ceiling and licor plates, the lugs or lteeth which intervene ybetween the 'notchesv being specially-'formed for this purpose According to the showing in F ig. 2, certain of the lugs en theweb plate are provided with oblique faces 26 disposed in substantially 'vertical planes when the webs*aresetup. [These lugs which lieadjacent the'edges lforin#V ing notgfhes on the ceiling ,p'lates,` 'are Vj adapted to occupy the spacesfthereiinbut not toextend beyond the lower face thereof. Other of the web plate notches, designated f bythe numeral 27, are formed to lie'within in.' The numeral 28 indicates/other lugs 'on the 'web plates which are formedk 'to` restV upon the upperface ofthe ceiling plates,v but spaced from each other for a purpose which will presentlyappear.V At'29 theliigs are shaped to enter into the `1f-shaped"spaces the adjacent lugs30 on the next web bearing 'against the lug 29, as shown.`

Along the edges of theweb (plates which i lie remote from:V the ceiling plates, that is, adjacentrthe floor plates "on their under sides, lugs having a different formation are provided Thel numeral designates "one lug` having a curved top surface with which ies co-opei'ates rother lugs 33 from the adjacent f web plate. The lug 3d is provided with an oblique' bearing face adapted [to rest rsquarely against theunder side of theffloor plates.V Another lug 86 presents one edge to a like lug on the adjacent plate so as to proyvide V-sliaped' troughs or pocketsv at intervals along the upper edge ,of the web'plates.

The floor plates whose construction ap- Vpears best in Figf2 have also suitable lugs arranged successively along their adjoining edges, these being denominated by the niimedges, these 'being denominated by the numerall 37. Atintervals a lug is missing so as lugs .36 of the web plates soas to provide a lateral border for the pockets which are substantially enclosed except upon their upper sides. which are so formed as to co-operate with Yeach other in the manner described, it

should be noted rthat theend plates H which are of triangular shape occupy positions adjacent the ends of the ceiling plates andthe vln'a'ddition to these several plates web plates,` the latter of which have inclined ends 39, as suggested in Fig. 3, so that their general shape is that of atrapezoid'. The extremities of these web plates may also be vrested upon theblocks F, as well as upon the ceiling plates, or, in fact, be supported with entire independence ofthe ceiling plates, if desired. y

The various lug and notch formations which have been suggested may, of course, be variously modified. According to the forms suggested, l provide suitable bearings in which the lower edges of the web plates are received, thus preventing any downward movement or horizontal displacement. ln addition, the web plates provide between them vertical faces,-o`pposing each other, thereby affording a solid vertical bearing for any horizontal force. The ceiling plates are furtherv beveled to fitV belowv the web plates so as to resist any upward movement of the former. rlfhese various notched formations further provide means for holding the web' plates in position upon the ceilingv plates prior to being cemented with mortar. Such details of construction, however, may

be worked out to suit individual requirements and are not to be considered as of primaru importance to this invention.

The mechanical connection 'which l have suggested for the ceiling, web, and floor plates may be further supplemented by ties such as the following: Extending fromsuitable reinforcements Ll0 such as would ordinarily be employed in the constructionof these'plates, are wires' 4l which project from the notched edges so as to lie within the pockets 38, an indicated in Fig. 6, or elsewhere, according to the particular location. The ends of these wires which may be bent in any7 suitable fashion are embedded in a little fill of concrete or other cementitions material which `is introduced into the pockets. ln addition, a shallow fill of concrete l2 may be arranged between'the several web plates along the troughs formed by their meeting edges. If wires connecting with the reinforcements be protruded from these plates along their edges, the same may be buried within the concrete lill thus introduced so as to further tie the plates together.

-he concrete lill which is arranged around the girders should be carried up approximately to the level of the floor plates, as indicated in Figs. land 3 so as to provide a floor construction whereon may be added a fill of cinders or the like for supporting the boards or other surfacing material.

The construction suggested in Fig. 5 makes use of licor components the same as those elsewhere described. The ceiling plates in this case, however, are supported in a plane which is just below the lower web of the girder so as to provide a ceiling construction which is of uniform height. ln all other respects the construction'follows that which has been elsewhere described.

By the construction of a floor in accordance with the preceding description, l am able to produce both upper and lower surfaces which are practically level and unbroken.. The strength of such a floor `is substantially proportional to its thickness Vbut in accordance with the present construction, this strength Ais obtained with minimum of floor weight owing to the open spaces which intervene between the ceiling web and floor plates. Preferably the shape of the several plates is such that their major surfaces are flat and smooth so as to assist in piling in compact form whether for storage or transportation purposes.

lk claim:

1.111 a floor cc'istruction having spaced supports, the combination of a plurality of plates extending in edge to vedge relation from one support to another, each plate having one end rested uponthe proximate support, otherplate-s arranged in edge to edge relation above the first named plates, and a plurality of web plates disposed obliquely and intermediately of the other sets of plates, the web plates being interlocked to eacn other and to thefvarious plates to which they are proxin'iate, substantially as described.

2. ln a floor construction, the combination of ceiling plates, floor plates arranged thereabove in spaced relation, web plates intermediately of the ceiling and floorplates, means for interlocking the ceiling plates with each other and with the web plates,

`means for interlocking the web plates to each other and to the iioor plates, and suitable supports on which the ceiling plates are rested, substantially. as described.

8. 1n a floor construction, the combination of a Vplurality of'interlocking ceiling plates above which in spaced relation are a plurality of interlocking floor plates and intermediately of the ceiling and floor plates a plurality of interlocking web plates adapted also to interlock with the floor and ceiling plates, and means whereon the ceiling plates are rested to provide a support for the iioor, substantially as described.

4. In a floor construction, the combination with suitable supports of a plurality of precast plates formed from concrete or the like, the several plates being variously formed and assembled to provide a plurality of ceiling plates arranged edge to edge with a portion of each rested upon the supports, a plurality of web plates upstanding from the ceiling plates, a plurality of floor plates arranged edge to edge and rested upon the upper edges of the web plates, and interengaging means at the edges of the several .plates whereby they are connectable to each other, substantially as described.

tween -tlie ebeams with the ends v"5. In a lloor constructiointlie combination of a plurality of ceiling plates arranged edge to edge above which in spaced relation are a plurality of vfloor plates arrangededge Dort and the end lates adacent thereto Y substantially as described. Y A

6. ln a lloor construction, the combination with a Vpair of fbeains, of ashee tile secured to the lower` Vweb ot each, a concrete foundation superimposed on the shoetile, a

shouldered block restingl on the foundation,

a plurality oiv ceilingplates extending be-V Y ot each resting upon' the blocli shoulder to derive support therefrom, alplurality oit web plates upstanding from the ceiling,l platespa plurality ot' iioor plates resting upon the web plates, plates arranged adjacent the endsoif the several plates adapted to close the spaces .extending transversely between the l-beains, and a concrete lill disposed between'y the web ofl the ebeams'and the adjacent end plates,

said fill being extendedy upwardly in liush relation with as described. Y

v 7.A ln a floor construction, the combination with a pair of -beains of a shouldered block supported on each` beam in parallelism with its web, a plurality of plates extending between the two beams and supported on.

' the block shoulders carried thereby, the

plates being` so assembled as to provide upper and lower rows with interposed plates each interloclied Awith those adjacent whereby there results a plurality ot transversely extending open Yspaces between `the two beams, the interposed plates having` openings through their bodies rby which communicathe floor plates, Vs'ubstantiailytion between all el' the said spaces is Lpro-v' vided, substantially as described.V Y

also aplurality of web plates transmitting support tronithe ceilingr to the floor plates, means lier interlocking the several'plates in unitary relation, there being` open spaces at intervalsvbetween the-adjacent edges ot' the several plates, wires (extending from the;

bodyV of each plate into the open sA aces, and

a i'ill oit concrete disposed in they several oj'ienspaces and adapted to bury thewires e. lna floor construction, the combination Y Vof a pluialityoE ceilingplates above which are a plurality ot' floor plates, there `being to provide a tie'between' the several plates, f there being suitable supports on which the ceiling` plates are rested, described. j j 9. ina licor construction, the combination l substantially as ojl a pluralityv ol" platesarranged edger'to .u

edge adapted to provide a f1o`oi,a plurality ketl web platesl therebelow affording a support on which the floor plates yare rested, means whereon the web plates aiee3'snpp0rted,

Vmeans interlockingtheweb@ and tloor .plates and .adapted to prevent displacement ,ot

coi'inected with the web4 platesY for supporting` a ceiling` therebelow, substantially, as

described. l. j i l0. ln a floor construction, the combination with a pair of supportsof a plurality of plates, extended' therebetween` andwsupported thereby, each ot the several plates being precast 'from concreteor the like, and l'iaviins;` its opposite edges formed with a plurality ot lugs, the several plates being assembled in double rows `between which Y 1 certain of the plates are.interposed,-the lugs oneach plate being interlocked with those on the adjacentplates in the sainev iow and with those en the proximate interposed plates so as to provide in effect a unitary structure,` substantially as described.

wiLLiAM E. nAMsnY;

V.either u-'itli respect to the other, and means V1 

